Expansion Board


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List Price: $249.00
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The AEB4-O (Analog Expansion Board) adds four analog outputs in professional quality to all ADAT capable RME cards. Level adjustment +4 dBu/-10 dBV, 106 dBA SNR and a servo balanced output stage deliver perfect sound and sonic clarity.

The AEB4-O is designed for maximum flexibility. Jumpers allow to route channels 1/2 3/4 or 5/6 7/8 to the four analog outputs. Installation is done in a convenient manner using the supplied bracket, or - as no contact to any slot on the motherboard is needed - at any place inside the computer. Nuts for all TRS jacks and a drilling template are included.

The AEB8-O offers 8 outputs with 4 stereo TRS jacks. Usual insert cable can be used to split the connectors from stereo jack to mono jacks. It is also possible to drive up to 4 stereo headphones directly. Level adjustment +4 dBu/-10 dBV, 106 dBA SNR and highest suppression of PC-noise guarantee perfect sound quality.


Using the Analog Expansion Board is very simple. The AEB4/8-O operates like any other DA-converter with ADAT input, except that it is connected internally. Therefore 'Force Adat' should be activated in the DIGI96 series Settings Dialoges, to guarantee an ADAT output signal.

The card's optical ADAT output always works in parallel to the analog output of the AEB4-O. Two jumpers allow to choose, which of the 8 ADAT channels will be present at the 4 analog outputs.

Cards of the DIGI96 series include a freely assignable analog output. Therefore PST, PAD and PRO offer a total of 6 analog output signals with the AEB4-O.


  • Output AEB4-O: 4 x 1/4" TRS jack, servo balanced
  • Output AEB8-O: 8 x 1/4" TRS jack, unbalanced
  • Dynamic ratio: 103 dB (RMS unweighted), 106 dBA
  • THD+N: -95 dB (0,0017 %)
  • Frequency response: -0,1 dB: 10 Hz - 21 kHz
  • Output level for 0 dBFS @ +4 dBu: +12 dBu
  • Output level for 0 dBFS @ -10 dBV: +2 dBV
  • Crosstalk > 110 dB
  • Supported sample rates: 32 kHz - 48 kHz
  • Output impedance: 75 Ohm
  • Power supply uses 3.5" floppy connector, 12/5 V DC, 190 mA
  • AEB needs no slot on the motherboard
  • Standard bracket, board dimensions AEB4: 85 x 95 mm, AEB8: 120 x 95 mm
  • 1 internal cable 2-pin, 1 power adapter cable 5 1/4" to 2 x 3.5" included
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